nevermind. found it.
settings are:
Server name: Alltel MMSC
Gateway: mms.alltel.com
Port number: 8080
Server address:
http://mms.alltel.com/servlets/mms
connect via: NETWORK
send limit: MAX
Everything looks correct. And that's the only MMS connection there is. Why does it give me that notification to download and when I click yes, it still does nothing.